Stewed Pig Lung with Malva Nut: Recipe & Lung Benefits

Introduction to Medicinal Food

“Boat-fruited Sterculia (Pangdahai) and Pig Lung Soup” is a traditional Chinese medicinal dietary recipe originating from the folk therapeutic cuisine of the Lingnan region. It is characterized by its sweet, cold, and moistening properties. Boat-fruited Sterculia (Sterculia lychnophora Hance), also known as “Dahaizi” or “Annanzi,” is the mature seed of a plant in the Sterculiaceae family. It resembles an olive in shape and expands like a sponge when soaked in water. Pig lung is taken from fresh pig lung tissue, which is tender in texture and carries the principle of “using an organ to supplement the corresponding organ.” When combined, the soup has a clear broth, a smooth texture, and a mild sweetness mixed with a light meat aroma. It can serve as a daily soup and is also a home remedy for regulating lung heat with dry cough.

This medicinal diet skillfully combines Chinese medicinals with food ingredients. Through slow simmering, the mucilage and active constituents of *Pang Dahai* (Sterculia lychnophora / Boat Sterculia Seed) are fully released into the soup, while pig lung serves to give form and enhance the therapeutic effect. It is suitable for daily maintenance in autumn and winter or in dry environments, especially for individuals who use their voice frequently. In folk practice, it is often used as a supportive dietary therapy to relieve throat discomfort and hoarseness. The overall medicinal nature is balanced, but attention should be paid to pattern-based dietary therapy (biàn zhèng shī shàn).

Medicinal Diet Efficacy

The core effects of this medicinal food are to clear heat, moisten the Lung, benefit the throat, and resolve toxin. Sterculia lychnophora (Boat-fruited Sterculia) is sweet and cold, enters the Lung (LU) and Large Intestine (LI) meridians, and is adept at opening Lung qi and clearing Lung heat. It provides significant relief for red, swollen throat, dry pain, cough, and hoarseness caused by Lung heat or Dry-heat patterns. Pig lung is sweet and neutral in nature, capable of tonifying Lung deficiency and stopping cough. The combination of the two—one clears, one tonifies—ensures a clearing and moistening effect without damaging healthy qi.

From a modern nutritional perspective, Pangdahai (Sterculia lychnophora) is rich in sterculia gum, tragacanth mucopolysaccharides, and various trace elements, which can stimulate pharyngeal mucosal secretion, dilute phlegm, and promote its expulsion. Pig lung contains abundant protein, vitamins, and iron, helping to enhance the body’s immunity. When stewed together, they not only improve the dry condition of the respiratory tract but also provide easily absorbable nutrients for the body. This combination is especially suitable for autumn dry cough or pharyngeal discomfort caused by long-term smoking.

The role of Traditional Chinese Medicine

Traditional Chinese Medicine theory holds that “the lung is a delicate organ, loving moisture and disliking dryness,” and the preparation “Stewed Pig Lung with Sterculia (Pangdahai)” aligns precisely with this physiological characteristic. Sterculia is light in nature and floats upward, adept at opening the upper orifices, facilitating the lung qi, clearing phlegm-fire, and its sweet-cold property can constrain stagnant heat in the lung, allowing the Metal qi to become clear and descending. Pig lung, as a substance of blood and flesh, follows the principle of “like treats like,” directly supplementing the lung’s qi and yin, and enhancing the lung’s dispersing and descending functions.

The synergistic effects of these two ingredients manifest at three levels: First, the combination of Pangdahai (Sterculia lychnophora), which benefits the throat and opens the voice, with pig lung, which tonifies deficiency, can improve both “metal-excess aphonia” (excess-type loss of voice) and “metal-deficiency aphonia” (deficiency-type loss of voice). Second, the mild bowel-moistening and laxative property of Pangdahai, when used in small amounts, paired with the moistening action of pig lung, facilitates the exterior-interior relationship between the Lung and Large Intestine, allowing the fu-qi to flow freely and phlegm-heat to descend and discharge. Third, the slow cooking method allows the medicinal and food ingredients to release their active components gradually, preventing excessive cold from damaging the Stomach, thus making it especially suitable for individuals with Lung heat and fluid damage who still have adequate Spleen and Stomach function.

Key Points of Medicinal Property Compatibility

It should be noted that the dosage of Pangdahai (Sterculia lychnophora / Boat-fruited Sterculia) should not be excessive; typically, 3 to 5 pieces per person per use is sufficient, as more may easily cause diarrhea. When cleaning the pig lung, repeatedly rub it with salt or starch to remove the fishy odor and blood, ensuring the soup’s flavor is pure. The simmering time should be controlled between 1.5 to 2 hours to allow the medicinal effects and meat flavor to fully integrate.

Indications

This medicated diet is mainly indicated for individuals with Lung Heat Dryness with Cough and throat discomfort. It specifically includes: teachers, hosts/anchors, and singers who overuse their voice over long periods, presenting with hoarseness and dry throat due to vocal cord congestion; those with chronic pharyngitis or tonsillitis manifesting as pharyngeal itching, dry cough without phlegm, or scanty sticky phlegm; as well as people experiencing dry nose, dry tongue, and mild cough caused by dryness in autumn or in air-conditioned rooms. All such individuals may take it in appropriate amounts.

In addition, smokers and passive smokers who often experience a sensation of a foreign body in the throat or morning cough with difficulty expectorating phlegm may use this dietary therapy as a periodic regulation. For some elderly individuals with deficiency-heat cough due to Lung yin deficiency, especially if accompanied by dry stools and scanty dark yellow urine, this preparation is also suitable. Typically, taking it consecutively for 2–3 times at the early stage of symptoms can lead to improvement.

Contraindicated Populations

Caution is required for individuals with a constitution of Deficiency-Cold. Specifically, those with Spleen and Stomach Deficiency-Cold (often presenting with loose stools, aversion to cold with cold limbs, pale tongue with white slippery coating) should avoid use, as the cold and moistening nature of Sterculia lychnophora (Boat-fruited Sterculia), known as Pangdahai, may exacerbate diarrhea. It is also unsuitable during the early stage of Wind-Cold Common Cold (marked by severe aversion to cold, clear nasal discharge, and white phlegm), as it may “lock the pathogen within” (trapping the exterior pathogen). Pregnant and breastfeeding women should use only under the guidance of a physician, as Pangdahai exerts a mild effect of promoting intestinal peristalsis, which may lead to abdominal discomfort.

Additionally, this diet is contraindicated for individuals with a pig lung allergy. For severe respiratory diseases such as lung abscess and bronchiectasis complicated with hemoptysis, one should not rely solely on this medicinal diet; standard medical treatment should be prioritized. When administered to children, the dosage should be reduced, and it is best to remove the hard shell of *Sterculia lychnophora* (Malva Nut), using only the gelatinous part. Patients with hypotension should also exercise caution, as Malva Nut possesses a certain hypotensive potential, and excessive consumption may lead to low blood pressure.

Ingredient Formula Proportions

Standard formula (serves 1–2):

• Pang Da Hai (Sterculia lychnophora, Malva nut): 5 pieces (approx. 10 g)
• Fresh pig lung: 300 grams
• Zingiber officinale (Ginger): 4 slices (approx. 10g)
• Lycium barbarum (goji berry): 5 g
• Salt: to taste (about 3 grams, season at the end)
• Rice wine: 10 ml
• Plain water: 1500 ml

Select large, brown-colored, finely wrinkled seeds of Boat-fruited Sterculia (Sterculia lychnophora); for pig lung, choose pieces with a pale red color and good elasticity, avoiding those that are dark or contain blood clots. For single-person consumption, reduce the amount by half proportionally, but the number of Boat-fruited Sterculia seeds should not be less than 3. Goji berries (Lycium barbarum) are used to enhance sweetness and color, but are not essential.

Preparation method

Step 1: Prepare the pig lung. Align the trachea of the pig lung with the faucet, repeatedly fill with water and rinse until the lung lobes turn white and are free of blood. Cut into 3 cm cubes, add salt and starch, scrub for 2 minutes, then rinse with clean water and drain.

Step 2: Blanch to remove odor. Add cold water to a pot, then add the pig lung pieces, 2 slices of fresh ginger (Rhizoma Zingiberis Recens), and 10 ml of cooking wine. Bring to a boil over high heat, skim off any foam, and continue boiling for 2 minutes. Remove the lung pieces and rinse them with warm water to wash away any remaining foam.

Step 3: Soak and puff the Sterculia lychnophora (Malva nut). Soak the Malva nut in warm water for about 15 minutes to allow it to fully expand. Tear it open and remove the inner core (alternatively, you may keep the core, though the texture will be slightly astringent). Set aside for use.

Step 4: Stewing. Place the blanched pig lung, soaked Boat-fruited Sterculia (Pangdahai), the remaining 2 slices of fresh ginger, and 5 grams of goji berries (Lycium barbarum) into a clay pot. Add 1500 ml of clean water. Bring to a boil over high heat, then reduce to low heat and gently simmer for 1.5 hours.

Step Five: Season and serve. Simmer until the pig lung is tender and the soup turns a light yellow. Add an appropriate amount of salt, stir well, and cook for another 5 minutes before turning off the heat. Remove the ginger slices before serving. Consume both the soup and the solid ingredients together.

Drinking Tips

1. Timing of consumption: It is recommended to take it warm, half an hour before meals or one hour after meals, once daily, for three consecutive days as a treatment cycle. Discontinue once symptoms improve. When used long-term as a health maintenance soup, do not exceed two times per week.

2. Precautions for combination: During the course of administration, avoid spicy, grilled, fried, and other dry-heat foods to prevent counteracting the clear-moistening effect of the medicinal diet. If concurrently taking other Chinese herbs that clear Heat and disinhibit the Throat (清热利咽), maintain an interval of at least half an hour.

3. Preservation and Reheating: If the prepared medicinal food cannot be consumed in one sitting, filter out the softened residue of Malva nut (Sterculiae Lychnophorae Semen, Pangdahai), then refrigerate the soup and pig lung separately. Consume within 24 hours. When reheating, use low heat and avoid prolonged boiling to prevent destroying active components. In cases of severe oral ulcers or sore throat, increase Malva nut to 8 pieces, but correspondingly extend the cooking time and observe bowel movements.